Perhaps not exactly "Bushcraft", but does anyone have any idea how to stop a glass bottomed tankard leaking? It was presented to me about 10 years ago when I was posted away from the unit I was on at the time. It's had regular use since then , but alas, it's started leaking from the seal around the glass base. I've toyed with the idea of running a bit of varnish around it or even using windscreen sealer (if such a thing is still available!), but I was wondering if anyone on the forum had any knowledge of the way to do it?
I like using my tankard and I'd be unhappy to relegate it to a shelf as an ornament.